/* QuizVerse Global Styles - Cosmic Glassmorphism Design System */

/* Import Poppins Font */
@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap");

:root {
  /* Colors - Purple/Blue Gradient Theme with Orange Accents */
  --color-primary-start: #8b5cf6;
  --color-primary-end: #3b82f6;
  --color-accent-start: #ff7a59;
  --color-accent-end: #ff5a2a;

  /* Bubble Colors */
  --color-bubble-purple: rgba(139, 92, 246, 0.4);
  --color-bubble-blue: rgba(59, 130, 246, 0.4);
  --color-bubble-pink: rgba(236, 72, 153, 0.4);
  --color-bubble-orange: rgba(255, 122, 89, 0.4);

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --card-bg: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(240, 249, 255, 0.9));

  /* Text Colors */
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-light: #ffffff;

  /* Shadows */
  --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 12px 48px rgba(0, 0, 0, 0.15);
  --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.3);

  /* Border Radius */
  --radius-card: 24px;
  --radius-button: 50px;
  --radius-input: 50px;
  --radius-small: 18px;

  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 20px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
}

/* Dark Mode Variables */
body.dark-mode {
  --card-bg: linear-gradient(135deg, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 0.9));
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --glass-bg: rgba(30, 41, 59, 0.3);
  --glass-border: rgba(255, 255, 255, 0.1);
}

/* Global Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Poppins", sans-serif;
  background: linear-gradient(135deg, var(--color-primary-start) 0%, var(--color-primary-end) 100%);
  min-height: 100vh;
  color: var(--text-primary);
  position: relative;
  overflow-x: hidden;
}

/* Floating Bubbles Background */
.bubbles-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.bubble {
  position: absolute;
  border-radius: 50%;
  filter: blur(0px);
  animation: float 15s infinite ease-in-out;
  opacity: 0.6;
}

.bubble:nth-child(1) {
  width: 300px;
  height: 300px;
  background: var(--color-bubble-pink);
  top: 10%;
  left: 10%;
  animation-delay: 0s;
  animation-duration: 20s;
}

.bubble:nth-child(2) {
  width: 250px;
  height: 250px;
  background: var(--color-bubble-orange);
  top: 60%;
  right: 15%;
  animation-delay: 2s;
  animation-duration: 18s;
}

.bubble:nth-child(3) {
  width: 200px;
  height: 200px;
  background: var(--color-bubble-pink);
  bottom: 20%;
  left: 20%;
  animation-delay: 4s;
  animation-duration: 22s;
}

.bubble:nth-child(4) {
  width: 280px;
  height: 280px;
  background: var(--color-bubble-orange);
  top: 40%;
  right: 40%;
  animation-delay: 6s;
  animation-duration: 19s;
}

@keyframes float {

  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  33% {
    transform: translate(50px, -50px) scale(1.1);
  }

  66% {
    transform: translate(-50px, 50px) scale(0.9);
  }
}

/* Glass Card */
.glass-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-card);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-soft);
  padding: var(--spacing-lg);
  position: relative;
  z-index: 1;
}

/* Buttons */
.btn {
  font-family: "Poppins", sans-serif;
  font-weight: 500;
  padding: 14px 32px;
  border-radius: var(--radius-button);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent-start), var(--color-accent-end));
  color: var(--text-light);
  box-shadow: 0 4px 20px rgba(255, 122, 89, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(255, 122, 89, 0.5);
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Inputs */
.input-field {
  font-family: "Poppins", sans-serif;
  width: 100%;
  padding: 14px 24px;
  border-radius: var(--radius-input);
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.9);
  font-size: 15px;
  transition: all 0.3s ease;
  color: var(--text-primary);
}

.input-field:focus {
  outline: none;
  border-color: var(--color-accent-start);
  box-shadow: 0 0 0 3px rgba(255, 122, 89, 0.1);
}

.input-field::placeholder {
  color: var(--text-secondary);
}

/* Select Dropdown */
select.input-field {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 20 20' fill='none'%3E%3Cpath d='M5 7.5L10 12.5L15 7.5' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 20px center;
  padding-right: 50px;
}

/* Form Groups */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--text-primary);
  font-size: 14px;
}

/* Stat Cards */
.stat-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-small);
  padding: var(--spacing-md);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-soft);
}

.stat-card .stat-value {
  font-size: 32px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-accent-start), var(--color-accent-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-card .stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Badge */
.badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  background: linear-gradient(135deg, var(--color-accent-start), var(--color-accent-end));
  color: var(--text-light);
}

/* Orbit Illustration */
.orbit-container {
  position: relative;
  width: 300px;
  height: 300px;
}

.orbit-circle {
  position: absolute;
  border-radius: 50%;
  border: 2px dashed var(--glass-border);
  animation: rotate 20s linear infinite;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: var(--spacing-md) var(--spacing-lg);
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-card);
  padding: var(--spacing-lg);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-medium);
}

/* Utility Classes */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

.text-center {
  text-align: center;
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

/* Responsive */
@media (max-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .bubble {
    display: none;
  }
}

/* Animations */
.fade-in {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Error Message */
.error-message {
  color: #ef4444;
  font-size: 14px;
  margin-top: 8px;
  padding: 8px 16px;
  background: rgba(239, 68, 68, 0.1);
  border-radius: 12px;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Success Message */
.success-message {
  color: #22c55e;
  font-size: 14px;
  margin-top: 8px;
  padding: 8px 16px;
  background: rgba(34, 197, 94, 0.1);
  border-radius: 12px;
  border: 1px solid rgba(34, 197, 94, 0.2);
}

/* Dark Mode Specific Styles */
body.dark-mode .review-question-item,
body.dark-mode .view-question-item {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(59, 130, 246, 0.15));
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
}

body.dark-mode .review-answer,
body.dark-mode .view-answer {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(59, 130, 246, 0.1));
  color: var(--text-primary);
}

body.dark-mode .modal-content {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 0.9));
  color: var(--text-primary);
}

body.dark-mode .review-question-item:hover,
body.dark-mode .view-question-item:hover,
body.dark-mode .review-answer:hover,
body.dark-mode .view-answer:hover {
  box-shadow: 0 0 12px rgba(139, 92, 246, 0.3);
}

body.dark-mode .input-field {
  background: rgba(30, 30, 40, 0.9);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-input);
}

body.dark-mode select.input-field {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 20 20' fill='none'><path d='M5 7.5L10 12.5L15 7.5' stroke='%23cbd5e1' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/></svg>");
}

body.dark-mode .glass-card,
body.dark-mode .stat-card {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.12), rgba(59, 130, 246, 0.12));
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
}

body.dark-mode .btn-secondary {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(59, 130, 246, 0.2));
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
}

body.dark-mode .input-field {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(59, 130, 246, 0.1));
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
}

body.dark-mode .input-field::placeholder {
  color: var(--text-secondary);
}